Prev Next

Java / Constructor

What is No-arg constructor or default constructor.?

Constructor without arguments is called the no-arg constructor. Default constructor in Java is always a no-arg constructor and it is created by the compiler when no explicit constructor exists.

public class MyClass
{
    public MyClass() //No-arg constructor
    {
        
    }
}

It's right time to invest in Cryptocurrencies Dogecoin! Earn free bitcoins up to $250 now by signing up.

Earn bitcoins upto $250 (free), invest in other Cryptocurrencies when you signup with blockfi. Use the referral link: Signup now and earn!

Using BlockFi, don't just buy crypto - start earning on it. Open an interest account with up to 8.6% APY, trade currencies, or borrow money without selling your assets.

Join CoinBase! We'll both receive $10 in free Bitcoin when they buy or sell their first $100 on Coinbase! Available in India also. Use the referral Join coinbase!

Invest now!!! Get Free equity stock (US, UK only)!

Use Robinhood app to invest in stocks. It is safe and secure. Use the Referral link to claim your free stock when you sign up!.

The Robinhood app makes it easy to trade stocks, crypto and more.

Webull! Receive free stock by signing up using the link: Webull signup.

More Related questions...

What is a Constructor? Rules for creating a Java constructor. Types of Java constructor. Java Default Constructor. Java parameterized constructor. Advantages of parameterized constructor. What happens when the developer does not implement default constructor? Purpose of default constructor. Constructor Overloading in Java. Copy-Constructor. Difference between constructor and method in Java. What are pass by reference and pass by value? Can constructor perform other tasks instead of initialization? Can a constructor call/invoke a static method? Can a constructor invoke a non-static/instance method? Can abstract class have constructors? What is the access modifier of the Default constructor? Can the class with private constructor be extended? Can the inner class with private constructor be extended? Can you use this() and super() both together in a constructor? Can constructor be synchronized in Java? Is constructor inherited? Can a constructor be final? Can we call the constructor of a class more than once for an object in Java? Is constructor called when cloning in Java? Different ways to create an object in Java. Difference between Class.newInstance() and Constructor.newInstance(). How to Initialize class with Class.forName() that has parameterized constructor? Can you define a method with the same name as the class? What happens when we add a return type to the constructor? Is Constructor definition mandatory? If a class has an explicit constructor, does compiler create default constructor? Can we throw exceptions from a constructor? What are the access modifiers that cannot be applied to a constructor? What is constructor chaining? How do I call subclass constructor from superclass constructor? What is No-arg constructor or default constructor.? Can you declare Constructor as final in Java?
Show more question and Answers...

Interface

Comments & Discussions

Interviews Questions

About Javapedia.net

Javapedia.net is for Java and J2EE developers, technologist and college students who prepare of interview. Also this site includes many practical examples.

This site is developed using J2EE technologies by Steve Antony, a senior Developer/lead at one of the logistics based company.

contact: javatutorials2016[at]gmail[dot]com

Kindly consider donating for maintaining this website. Thanks.

Copyright © 2020, javapedia.net, all rights reserved. privacy policy.

DMCA.com Protection Status